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Important?
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1991 Vehicles by Buick

Model
MPG
(city)
MPG
(hwy)
Annual
Fuel
Cost*

Greenhouse Gas
Emissions
(tons/yr)*
Greenhouse gas (GHG) emissions from your car may contribute to climate change. Cars with better gas mileage emit less greenhouse gases. Click for more info.
EPA
Air
Pollution
Score
From 0 to 10 (best)
The EPA air pollution score rates cars and light trucks based on how much smog-forming air pollution they emit. Some vehicles are available in multiple emission versions. Click for more info.
Buick Century
4 cyl, 2.5 L, Automatic 3-spd, Regular
19 28
$1133
8.30 NA
Buick Century
6 cyl, 3.3 L, Automatic 3-spd, Regular
17 24
$1310
9.60 NA
Buick Century
6 cyl, 3.3 L, Automatic 4-spd, Regular
17 27
$1245
9.20 NA
Buick Century Wagon
4 cyl, 2.5 L, Automatic 3-spd, Regular
18 26
$1185
8.70 NA
Buick Century Wagon
6 cyl, 3.3 L, Automatic 3-spd, Regular
17 23
$1310
9.60 NA
Buick Century Wagon
6 cyl, 3.3 L, Automatic 4-spd, Regular
17 27
$1245
9.20 NA
Buick Coachbuilder Wagon
8 cyl, 5.0 L, Automatic 4-spd, Regular
15 23
$1464
10.80 NA
Buick LeSabre
6 cyl, 3.8 L, Automatic 4-spd, Regular
17 26
$1245
9.20 NA
Buick Park Avenue
6 cyl, 3.8 L, Automatic 4-spd, Regular
16 24
$1310
9.60 NA
Buick Reatta
6 cyl, 3.8 L, Automatic 4-spd, Regular
16 25
$1310
9.60 NA
Buick Regal
6 cyl, 3.1 L, Automatic 4-spd, Regular
17 28
$1245
9.20 NA
Buick Regal
6 cyl, 3.8 L, Automatic 4-spd, Regular
17 26
$1245
9.20 NA
Buick Riviera
6 cyl, 3.8 L, Automatic 4-spd, Regular
16 24
$1310
9.60 NA
Buick Roadmaster Wagon
8 cyl, 5.0 L, Automatic 4-spd, Regular
15 23
$1464
10.80 NA
Buick Skylark
4 cyl, 2.3 L, Automatic 3-spd, Regular
21 30
$1038
7.70 NA
Buick Skylark
4 cyl, 2.5 L, Automatic 3-spd, Regular
19 28
$1133
8.30 NA
Buick Skylark
6 cyl, 3.3 L, Automatic 3-spd, Regular
17 24
$1310
9.60 NA

Annual Fuel Costs and Greenhouse Gas Estimates are based on 45% highway driving, 55% city driving, and 15000 annual miles.

Assumed Fuel Prices:

  • Regular: 1.66
  • Premium: 1.92
  • Diesel: 2.42
  • CNG: 2.55
  • Electricity: 0.08 per kilowatt hour
  • E85: 2.82
  • LPG: 2.10